Grain-drill.



1-. STURROCK.

GRAIN DRILL.

APPLICATION FILED ADC-4.26.1914.

1,262,283,, Patented Apr. 9,1918.

2 SHEETS-SHEET I.

l nvewibr ejohnfiiurroeh J. STURROCK. GRAI N DRILL.

APPLICATION FIEED AUG.26. 1914.

1,262,283. Patented Apr; 9, 1918.

Z SHEETHHEET 2.

JOHN STURROCK, F CHICAGQ, ILLINOIS, ASSIGNOE T0 INTERNATIONAL HARVESTERCOMPANY OF NEW JERSEY, A CORPORATION OF NEW JERSEY.

' GRAIN-DRILL.

. Patented Apr.9, 191s.

. Application filed August 26, 1914. Serial No. 858,593.

To all whom it may concern:

Be it known that 1, JOHN STURROCK', a 7

subject of the King of Great Britain, resid- State of Illinois, haveinvented certain new and useful Improvements in Grain-Drills, of whichthefollowing is a full, clear, and exact specification.

My invention relates to grain drills of the single disk type, whereinthe furrow openers include independent drag bars having their front endspivotally connected with the frame of the machine in a manner permittingtheir rear ends to rise and fall, a rota table disk journaled upon asupport carried by the drag bar, a grain delivery boot also supported bythe drag bar, and a scraper mechanism engaging with the disk to keep itclean of adhering soil.

My invention has among its objects to provide an improved form of grainboot and boot support, and an efficient form of scraper mechanism.

These objects are attained by means of mechanism, one embodiment ofwhich is illustrated in the accompanying drawings, in which- Figure l isa side elevation in perspective of the grain boot, furrow opening disk,and their supporting drag bar; 1

Fig. 2 is a view similar to Fig. 1, as seen from its opposite side;

Fig. 3 is a top plan view of Fig. 1; I

Fig. 4 is a rear elevation of part of the grain boot;

Fig. 5 is a front elevation of Fig. 4:;

Fig. 6 is a side elevation of the grain boot, disk furrow opener anddrag bar support, showing the yielding connection between the boot anddrag bar;

Fig. 7 is a top plan View of Fig. 6;

Fig. 8 is a view similar to Fig. 6, showing the grain boot as swungupward and rearward about its pivotal connection with the drag bar; and

Fig. 9 is a cross section of Fig. 6 along line AB.

Referring to the drawings, wherein the same reference numerals designatelike parts throughout the several views, the main part of the drag barconnection is represented by 1. 2 represents a brace member having itsrear end secured to the main bar intermediate its ends, the two membersdiverging at their front ends and provided with means whereby they maybe pivotally connected with the frame of the machine in a mannerpermitting their rear ends to rise and fall in a vertical plane. 3represents a disk support secured to the rear end of the drag bar member1, and having a concavo{ convex rotatable furrow opening disk 4 journaled thereon, disposed at an angle with the line of draft, andhaving its concave face adjacent the drag bar, and 5 a boot supportingarm including upwardly and rearwardly curved bars substantiallyconcentric with the axis of the disk, and spaced apart, having theirfront ends either rigidly secured to the drag bar, as shown in Fig. 1,or pivotally connected therewith, as shown in Figs. 6 and 9, wherein acompression spring 6 is carried by a link 7, having its rear endpivotally connected with the drag bar and its front end slidablyreceived by a block member 8 mounted between the bars 5 intermediatetheir ends, the spring being operative to resist an upward swing of thebars 5 about their pivotal connections with the drag bar. 9 represents agrain conducting boot having its upper end provided with a forwardlyextending ear member 10 whereby it is secured to the rear ends of thecurved bars 5, and a rearwardly extending ear member 11 whereby it isconnected with the usual controlling links 12, carrying pressure springs13. The boot 9 is disposed upon the convex side of'the furrow openingdisk, being curved as shown in Fig. 4, to conform therewith, and curvedgradually downward and rearward, terminating in a substantiallyvhorizontal lower end 14, open' at its bottom'and rear end andhavingrearwardly diverging side walls 15, forming a V-shaped seed conduitsubstantially horizontal, that follows in the furrow opened by therotatable disk, keeping it from becoming filled until the seed has beendischarged from the delivery opening of-the boot therein unobstructed,and 16 represents a short steel wearingplate secured to the inner wallof the lower end of the boot and adapted to engage disk in a manner toboth support the journal bearing of the disk and to keep it cleared ofadhering soil that might otherwise collect thereon. 17 represents ascraper secured to the drag bar forwardly of the axis of the disk andextending upwardly therefrom. The scraper has its'upper end with theadjacent moving I curved laterally in a manner to fit closely againstthe concave surface of the disk and longitudinally: to; p;resentgradually increasing radii, the form being such as to shed roots andother trash that might otherwise collect thereon. 5

Having shown a preferred and modified Qf-mof my-inventiolnl donot wishtoconfine it closely to the specific, detailsof. construction as shown,it being understood that changes beomade, in form; and, proportiOIl;witho,u't departing'from the spirit of the invention 1 i What I claimas my invention, and desire to secureby Letters Patent, is:

1, In a furrow opener for grain drills, a rotatableconcave-convex furrowopening disk, and aboot supported adjacent the convex surface thereofand curved throughout its, length to, conform therewith, said boot,

curving downward and, rearward and terminating in a substantiallyhorizontal part disposed; in the direction of the line of travel andbeing open at its'bottom and. rear end.

2. Ina furrow, opener for grain drills, a rotatable concavo-convexfurrow opening disk, a, boot supported adjacent the convex surfacethereof and curved throughout its length toconform tl1erewith,said bootcurving downward andrearward and terminating in a substantiallyhorizontal part disposed in the direction of the line of, travel, openat its bottom and rear end, and a wearing plate secured to the inner.side of its lower end and engaging with said disk.

3. In a furrow opener for grain drills, a rotatable concavoconvex furrowopening disk, a boot supported adjacent the convex surface thereof andcurved throughout its length to conform therewith, said boot curvingdownward and rearward and terminating in a substantially horizontalpart" disposed in the direction of the line of travel,

open: at its bottom and rear-end, havingits.

side walls divergin rearwardly and a wearing plate secured to its innerwall and engaging: with said disk.

4-. In a furrow opener for grain drills, a

drag bar, a disk support carried by said.

drag bar, a rotatable furrow opening disk ournaled" upon said" support,a boot, a support for said boot including an. arnnhaving its rear. endsecured tosaid boot. and; curv ing. forward and downward substantiallyconcentric with. the axis of? said, disk, having, its front endpivotally connected: with, said;

drag bar, and a: spring operative between said drag bar and arm andyleldlngly re sisting an upward swing of the rearend' of said arm.

5. Ina furrow opener for grain;drills,.a,

drag bar, a disk support, carried by said dra bara a rotatable furrowonenin disk] 'ournaled' n 3011 said su) sort a boot a su 7 7 30ft forsaid boot including an army havin .1; b

in the presence of'two, witnesses.

7 JOHN STURRQCK.

Witnesses:

C; H. BURNS, VVILLIAM CLARK.

Copies ofi tl ispatent may be obtained for five cents each, byaddressing. the Commissioner of Patents, Washington, 3). C.

